// Copyright 2018 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

package filter

import "github.com/pingcap/parser/ast"

// AstToDDLEvent returns filter.DDLEvent
func AstToDDLEvent(node ast.StmtNode) EventType {
	switch node.(type) {
	case *ast.CreateDatabaseStmt:
		return CreateDatabase
	case *ast.DropDatabaseStmt:
		return DropDatabase
	case *ast.CreateTableStmt:
		return CreateTable
	case *ast.DropTableStmt:
		return DropTable
	case *ast.TruncateTableStmt:
		return TruncateTable
	case *ast.RenameTableStmt:
		return RenameTable
	case *ast.CreateIndexStmt:
		return CreateIndex
	case *ast.DropIndexStmt:
		return DropIndex
	case *ast.AlterTableStmt:
		return AlertTable
	}

	return NullEvent
}
